cannot connect to the internet after resume

["Forrest Y. Yu" <forrest yu gmail com>]

Hi Everyone,

  I have a laptop Acer Aspire 5610Z, which uses Atheros
AR5005G as the network controller. Everything is ok, however, sometime
when I resume the machine, I cannot access the network anymore.

  What confuses me most is, I can still access my Router, whose model is a TP-LINK TL-WR541G/542G.

  Neither restarting NetworkManager nor reloading the
ath_pci solved the problem. Everything becomes good again after
rebooting, but obviously reboot is not a good solution.

  Is this a NetworkManager bug? How can I solve the problem?

  Thanks in advance.

Cheers,
Forrest

-- 
Stupid is as stupid does.